Amalgamator



April 16,v 1929. D. H. KLElNscHMlDT 1,703,970

AMALGAMATOR Filed Oct. Q 1924 3 Sheets-Sheet l April 16, 1929- D. H. KLElNscHMlDT AMALGAMATOR 5 Sheets'-Sheet. 2

filed Oct. 9, 1924 April 16, 1929. D. H. KLINSCHMIDT AMALGAMATOR Filed Oct. 9, 1924 3 Sheets-Sheet 3 f-aizie Patented Apr. 16, 1929.

DANIEL H. KLEINSGHMIDT, OF LOS` ANGELES, CALIFORNIA.

AMALGAMATOR.

i Application filed October 9, 1924. Serial No. 742,543.

rl`his invention relates to improvements in amalgamators, and more particularly to that type into which earth or pulverizcd ore7 or both earth and ere containing precious 1netals, are fed for the. purpose of separating such metals from the material fed into the machine.

One of theobjects of my invention is to provide a machine which is continuous in action and which embodies a rapidly rotating chamber or receptacle, in which the earth or pulverized ore, or both, and water are fed into the machine and passed over a liquid surface of mercury or amalgam to cause the heavier particles in the form of precious metals to be separated from the earth or lighter minerals, or from both, as the case may be.

Another object of my invention is the provision of an amalgamator having a chamber' or receptacle containing mercury or amalgam, and being provided with movable .means adapted to allow the lighter material or substance passin through the chamber or receptacle to escape from the machine, after seijiarating tlie'hcavier material of precious metals therefrom, and which means is also adapted to receive the mercury or amalgam with .its contents of precious metals or substances retained therein.

A further object of my invention is to pro! vi de an amalganuitor with means for adjusting the same so that the flow of material through the same will be increased or diminished and the capacity of the machine regulated thereby.

A further object of my invention is to provide an amalgamator of the typeA in which precious metals heavier than the mercury or amalgam contained therein are separated from the material of lighterspecilic gravity than the mercury or amalgam7 and in which the operation of separating is more effectively accomplished by the use of water or air as a conveying or accelerating agency, the water or air to roll or move the material passing through the ulachine over or along the surface of the mercury or amalgam and finally force the lighter material, after sepa ration of the heavier' therefrom, out of the machine; water or air having a decided advantage over mechanical means used for this purpose, as such mechanical. means would soon wear out and tends to force out the amalgam by crowding,A and therefore cause loss of the same.

VVit-h the above and other objects in View to appear hereinailfter, the invention consists in the novelfeaturcs of construction and in the arrangement and combination of parts to be hereinafter described and more particularly pointed out in the subjoined claims.

In the drawings Fig. 1 is a side elevation of my improved amalgamator.

Fig. 2 is anv end elevation, viewed from. the front or feeding end thereof.

Fig. 3 is a plan view of the machine.

Fig. 4 is a transverse section taken on line it-4r, Fig. 3.

Fig. 5 is an enlarged fragmentary longitudin al section taken centrally through the amalgamating chamber or receptacle.

Fig. 6 is a further enlarged fragmentary longitudinal section through a portion of the amalgamating chamber or receptacle.

Fig. 7 is a longitudinal section through a portion of one of the water or air feeding or accelerating tubes.

Reference being had to the d 'awings in detail., the reference numeral 8 designates a fixed supporting frame on which is pivotally mounted an adjustable frame 9 carrying the amalgamating chamber or receptacle 10 and parts directly associated therewith.

The fixed supporting frame may be of any suitable construction, but has preferably a rectangular open base 11 formed of parallel side members 12 and end members 13 securely fastened to opposite ends of said. side mem bers. Rising from opposite side members 12 arjeinverted V-sliaped side members or standards 14 which are securely fastened to said side members and have spaced elements 15 at their upper ends. In preferred construction the rectangular open base 11 is constructed of Wood, and the lower portions of the side members or standards 14e are also constructed of wood, while the spaced elements 15 forming t-he upper portions thereof are constructeijl of heavy plate or sheet metal fastened to opposite sides of the wooden lower portions of said standards by means of suitable bolts 16, or otherwise.

The adjustable frame 9 is also rectangular in formation, having suliistantially the same width as the rectangular open base and being preferably a trifle shorter. This frame is formed of parallel side members 17 and end members 18 connecting opposite ends of said side members and at points centrally between their ends said side members 17 are posiinverted member having a pivot block 19 fastened to tioned between the spaced elements of the V-shaped standards, each side which establishes a center of rotation for the ainalgamating chamber or receptacle. Said center of rotation passes transversely through said chamber or receptacle and thus assures lan adjustment which-is quite sensitive and requires comparatively slight movement for change of capacity. As said rectangular adjustable frame is designed to supportoperatmg parts of this machine, I

vpreferably providesaid frame with braces 21 at its four corners or angles, thus giving said frame the necessary rigidity capable to withstand vibration and strains to which is may be subjected. It is of course to be understood that the construction of the sup- "porting frame and that of the adjustable j to the frame may be variedso long` as a suitable support is provided for said adjustableY frame and said adjustable frame can be mounted onsaid supporting frame for pivotal` adjustment.

Fastened to the'b'ase 11 of the supporting frame near one end thereof are u )rights Q2 9 a which are transversely alined, one ,being applied to the outer side of each of the parallel side memberslQ of said base. These uprights Vare tied tothe standards 14 and for this pui'- pose brace bars 23 are provided, one end of each brace bar being fastened to each upright near its upper en d and the other end thereof l standard 14 at the vsame side of the machine.

Fastened to the inner side ofeach of said uprights is a journal block 24, the blocks of said uprights beingr at the upper ends thereof 1 and being( alined transversely, and j ournaled therein isa transverse adjusting shaft 25 to which pinions 26 lare fastened. For the pur- Y poseof riotating'said shaft and said pinions, af hand Wheel 27 is secured to one end of the shaft, the hand wheel and the adjacent pinion being arranged so that the hubs thereof lie.in contact with opposite ends of one of the journal blocks and thus prevent lengthwise movement of said shaft.

Disposed at opposite sides ofthe machine are two semi-circular bars or members 28,

each having opposite ends secured to a side memberv 17 f of the Vadjustable frame near opposite ends thereof. The side members 17 are notched to receive said bars or members,

and the latter aresecurely fastened into the notches of said side members by means of bolts 29. These semi-circular bars or membei's 28 are alined with the pinions 26 on the operating shaft Q5, and along a portion of their outer edges they are provided with teeth 30. 'l`herefore, at least a portion of eaeh of said semi-circular bars or members may be lconsidered as a segrment gear. The pinions 2G ai'e in mesh at all times with said segment gears, as clearly shown in Fig. l. llaeh of said semi-circular bars or members is slotted alone' a greater portion of its length, as at 3l, and the diveririnpr members ot the standards are notched` as at 32. to receive said bars or members so that they are flush with the outer surfaces of said standards.

Secured in the downwardly (livel-ging;r members of each standard, are bolts 33 which project from said diverginpr members and extend through the slots of said semi-circular bars or members 2S, nuts 34 beiner threaded onto the projecting ends of said bolts and being; adapted to be forced firmly against said bars or members at opposite sides of the slots foiined therein so as to retain said bai's or members, and consequent] v the adjustableframe 9, in any desired position.

One of the pivot shafts 20 is longer than the other and extends outwardly a distanee from the standard through which it is passed, and on the projecting end thereof is a drive pulley 35 around which a drive belt 36 is arranged, and a second pulley 37 adjacent said drive pulley.

38 designates a longitudinally-disposed shaft journaled in bearings 39 secured to the upper sides of the end members 13 of the adjustable frame 9, and on said shaft a bevel gear 40 is secured which meshes with a second bevel gear 41 secured on a transverse shaft 42 journaled in bearings 43, 44 fastened, respectively, to one of the end members 18 and to one of the side members 17 of the adjustable frame 9. Said transverse shaft projects ontwardly beyond the side of said adjustable frame and on its projecting end it has a pulley 45 secured thereto around which and the pulley 37 a belt 4G is passed. The longitudinally-disposed shaft 38 is therefore driven by the belt 36 through the medium of the pulley 35 on one of the pivot shafts 20, the pulley or prime mover as it may be termed, the belt 46, pulley 45, shaft 42, and bevel gears 41 and 40; and while this is considered a highly desirable arrangement for driving said loneltudinally-disposed shaft owing'to the driving gear or mechanism so arranged being in connected condition and swinging as a unit on the axis of the adjustable frame, other drivingl gears or mechanisms may be substituted if found suitable for the purpose. In makingr this statement it not my intention to disclaim the driving gear shown and described, but on the contrary, it is my intention to generically include drivingr gears or mechanisms of different ar 'angcments which fall llt) f ceptacle l0, which is in the term ot a bowl having a substantially semi-spherical section a7, and a ring-like or cylindrical section 48,

i said sect-ions having peripheral flanges '-lS), 5()

at contiguous ends which lie in contact and by means ol which and bolts 5l passed therethrough the two sections of the bowl are connected together'. The longitudinally-disposed shalt 3S extends axially through said bowl and the latter is provided at its closed end with a boss 52 through which said shaft is passed so that the bowl is given an extended bearing on the shaft and a rigid support assured tor the same. In order that the bowl may be securely fastened to said shalt, the latter and the boss of the bowl are provided with coinciding key slots in which a key 53 is arranged, and a set screw 54 is also passed through said boss and bears with its end against the shaft to further `assure a secure f `fastening of the bowl to the shaft, especially since thetwo are adapted to be rotated at comparatively high velocity, as will appear hereinafter.

By reason of one end of the bowl being of semi-spherical formation, it is gradually enlargedin diameter from its closed end toward the open end of the semi-spherical section, and in this semi-spherical section a series ol mercury or amalgam-retaining grooves 55 are formed. These grooves are gradually increased in width from the innermost groove outwardly to the open end of said semispherical section. In the ring-like or cylindrical section 48 of the bowl, a comparatively wide and deep annular mercury or amalgamretaining groove or depression 5G is formed, which serves as a basin, the side walls of which are concaved, as shown at 57 and the outer cylindrical wall of which has obliquelydisposed fins 5S thereon, preterablyintegral therewith, these lins being disposed in spaced relation, as clearly shown in Fig. 5. It is to be noted that these obliquely-disposed tins 5S are of a height approximately one-halt` the depth ot the basin 56, in which they are disposed, and arranged within said basin and lying in contact with said tins, is what I term a separator 59 in the form of a ring made of plate or sheet material having a width somewhat less than that et the basin in which it is centrally disposed so that spaces 60 are provided between opposite edges ot said ring and the concaved side walls 57 ot' said basin. Retainer screws 61 are passed through said separater ring at intervalsalong each of its marginal portions, and these screws are threaded into the outer cylindrical wall of the basin 56, as clearly shown in Figs. 5 and 6.

The separator ring 59 divides the amalgam within thevbasin into two bodies, which, however, come together and i ntermix inthe spaces between the edges ol said ring and the side walls ot' the basin, and in these spaces the amalgam may ,be said to be en-massc.

When the bowl is prepared for operation, the amalgam grooves 55 and the amalgam basin 56 will be iilled with mercury or amalgam, as clearly shown in Fig. G, and it is of course understood, in order that all portions of these grooves andthe basin be completely filled .with mercury or amalgam, the bowl must be in rotation so that the mercury or amalgam will be retained within said grooves and basin by centrifugal lorce, as will be explained hereinafter.

62 designates a feed or supply tube, which extends into the bowl l() ofthe machine and which has a hopper 65 at its outer end, said tube and hopper being supported 'from the adjustable trame 9 by means ol' supporting bars (lil, two ot which are seci'lred to the hopper and converge downwardly thercirom tor attachment to one ol the end members ot said adjustable trame, and two of which are suitably secured to the feed or supply tube at a point adjacent said hopper and converge downwardly thcrelrom tor attachment te the side members oli said adjustable trame.

The inner or delivery end ot said feed or supply tube terminates a short distance iti-ein thc closed curved end oli the bowl directly above a baille 65 fastened to thc longitudinally-disposed shaft 88, which may be termed the bowl or amalgamator shaft.` This baille is in the form ot a disk having ahub at one side through which a set screw 66 passed that has its inner end bearing `['irmly against the shaft to retain the baille in position thereon. With the inner or delivery end oil the tube and the battle disposed as described, any material ted through said tube will be delivered into the bowl directly against the inner closed "all thereof and between said wall and the baille.

To assist in the separation ol. gold, platinum or other precious substances of greater specific gravity than the n'iercury or amalgam contained within the an'xalgamating receptacle or bowl, l resort to the use ol' what I term an accelerating device, which comprises means tfor supplying water, air, or the like to the material fed into the bowl while said material is moving in contact with the K enclosing wall ot said bowl; and this device,

in what I now consider its preferred torni, coniprises one or more air or water supply pipes G7 (two of said pipes being shown in the drawings) supported from a hanger or hangers GS 'fastened to one ol the suijiporting bars 6l connected to the teed or supply tube and a clip G9 surrouinling each ot said pipes and fastened to the under side of one oit the end members ot t-he adjustable trame.

By means of a suitable litt-ing 70, a perforated accelerator tube 71 is vconnected to saidsupply' pipe, and this lit-ting has a branch tube 72 secured thereto to which is connected by means of an elbow 7 3 a second accelerator tube 74. These tubes may be varied in number, but as shown in the drawings there are two accelerator' tubes connected to ea'chair or water supply pipe 67, and these tubes extend into the bowl l and are curved or otherwise fashioned to conform tothe outline of that portion of the wall with which they are co-extensive. Each accelerator tube has a series of reversely-inclined air or water apertures 75, so disposed for the reason that thesetubes extend into the bowl from the open end thereof and the vpurpose of the accelerator tubes are to direct ets of air or water against the material passing through the bowl in the direction'in which the material is to be passed out of the bowl. Therefore, the -iets of air or water, as the case may be,serve to assist in the movement of the material through the'bowl and they serve this purpose without acting to force any of the mercury or amalgam out of their retaining grooves or out of the basin formed within the wall of the bowl.

Surrounding the ring-like or cylindrical section 48 of the bowl, is what I term a mercury catch or catch basin 76, which is in the form of an annular chamber having a peripheral wall 77 and side walls 78, and at the lowermost port-ion of this mercury catch or annular chamber, the peripheral wall is bulged outwardly'to form an outwardly-inclined drain portion 7 9 provided with a discharge pipe`80 having a valve 81 therein for controlling theV escape of mercury from said mercury catch orannular chamber. It is to be'understood that this catch or catch basin is one adapted to receive mercury when discharged from the bowl, and while it is invariably retained in the position shown in full lines in Fig. 5, when the machine is operating it is adapted to be `moved forwardly into the position shown in dotted lilies in said figure when the mercury is to be drained from the bowl or when the mercury supplied into the bowl exceeds that necessary to fill the grooves 55 and the basin 56. For the purpose of moving the catch in the desired position, it is slidablysupported on the rectangular frame 9, and for this purpose guide and supporting rods 89. are fastened to the -inner sides of the side members of said frame and the mercury catch or annular chamber 76 is provided with guide sleeves or loops 83 through whichsaid guide supporting rods are passed. For conveniently movingthe mercury catch or basin from one position to another, it is provided at its outer end with handles 84.

l/Vhen placing the machine in operation,

' the mercury catch or annular chamber 76 is moved to the position shown in dotted lines in Fig. so that it projects beyond the open end of the bowl. Power is then applied to the elongated pivot shaft .20 by means of the belt 36, or otherwise, and by means of the driving gear 0r mechanisln shown and described, or other suitable mechanism having its parts co-operat-ing to function in substantially the manner as that shown and described, the amalgamating receptacle or bowl is rotated at a high rate of speed. The mercury or amalgam is next introduced into the bowl through the feed or supply pipe (i2 and gradually fills the grooves and the basin 56 of the bowl, and any surplus mercury or amalgam is dclivered out of the open end of the bowl into the mercury catch or annular chamber 76 while the bowl is being rotated. lvlien all the surplus mercury or amalgam has been delivered into the mercury catch, the latter is moved rearwardly from the position shown in dotted lines in Fig. 5, to or beyond that shown in full lines so that any material which later may escape from the open end of the bowl, will not enter the mercury catch. The sand, earth, or other material containing gold or other precious minerals to be separated therefrom is next delivered into the howl through the feed or supply pipe 62, preferably with a suitable quantity of water. This material escapes from said tube within the bowl and is directed against the inner closed end of the bowl in close proximity to its axis. The material striking said inner end, splashes or rebounds against the baie and is then directed to the peripheral Vall of the bowl, and owing to said wall being gradually enlarged in diameter forwardly, the centrifugal force imparted by the fast rotation of the bowl carries the material away from the center, and as this material is supplied with a quantity of water when fed through the spoilt, it moves comparatively freely along the wall of the bowl and over the mercury or amalgam-filled grooves, and in this action it is assisted in its movement by jets of air or water directed outwardly and forwardly through the apertures 7 5 in the accelerator tubes.

In passing forwardly along the walls of the semi-spherical section 48 of the bowl, the heavier particles or nugget-s of precious metal contained in the material, lodge in the mcrcury or amalgam within the grooves 55 and are held captive therein, while that portion of the material freed from such heavier particles or nuggets and containing the finer or iour-like particles of precious material, is moved forwardly and passes in contact with the mercury or amalgam retained within the basin 5G, the finer or flour-like part being retained and held 'aptive within the mercury or amalgam within said basin. It may here be stated that the mercury or amalgam within said basin is in constant circulation or under agitation caused b the action of the air or water jets against t 1e material passing over the basin and also by the tins 58 arranged within the basin between thel separator ring 59 and the peripheral wall of said basin. lhe rotation of the machine will always be somewhat fast r than the circular movement of the mercury or amalgam lwithin said basin and therefore said fins will have a tendency to cause the mercury or amalgam to circulate around the separator ring, the movement ofthe mercury or amalgam inf` side the separator being outwardly oiftoward the open end of the bowl, as indicated by the arrows 85, Fig. 5, while areverse move` ment of the mercury or amalgam takes place in the space between said separator ring and the peripheral wall of the basin, as indicated by the arrows S6.

The forward movement of the air or water jet-s tends to carry thematerial out ofthe machine and owing to this material; that is, the sand, earth, crushed or pulverized roch, bei-ng lighter than the mercury or amalgam, it will, when freed of all precious substances, float forwardly over the top of the-mercury or amalgam and be expelled from the bowl beyond the outer open end thereof. p

After feeding `any desired quantity of sand, earth, crushed or pulverized roclr or othermaterial containing precious substances to be recovered by amalgamation through the machine, the mercury catch orannular charm ber 76 is drawn forward from the position. shown in full lines in `Fig. to that shown in dotted lines, .and rotation of the bowl stopped, whereupon the mercury or amalgam and the precious substances contained or held in suspension therein will flow to thebottom of the bowl, with the result that itwill run out of the bowl intosaidmercury catch, or amalgam chamber, as it may be termed. It: will, however, be found necessary to tilt the bowl for@ wardly to pour out all of the mercury or amalgam and when this is found necessary, the hand wheel 27 will be actuated to rotate the pinions 26 in mesh with the segment gears formed on thesemi-circular bars or members 28, and this will cause the adjustable frame by which the amalgamating bowl is carried, to be swung on the pivot shafts with a forward inclination sufcient to pour out practically all mercury or amalgam within the bowl. When opening the valve 8l., the mercury or amalgam with its precious metal contained or held in suspension therein, will be deliveredthrough thel discharge pipe S0 to any suitable point, where the amalgam may be filtered, or otherwise treated to as-` sure full recovery of the precious metal. When operating the amalgamating receptacle to pour out the mercury or amalgam, said receptacle acts as a separatingreceptacle since it separates the mercury `and amalgam from the residueof the material "originallyfed into` the receptacle. L

While I liaveshown the amalgamating recept-acle or bowl in horizontal position, such position is found entirely practicable for amalgamation in most instances, especially when the material is fed into said receptacle bowl with a liberal quantity of water. When,

however, it is desired to increase the capacity of the bowl by passing a given quantity of material through the same within a given length of time, the bowl may be inclined forwardly `to anydesired degree, and by reason of the fact that the bowl is rotatedat a fairly high rate of speed, centrifugal force will retain the mercury or amalgam within the grooves and basin of the bowl, even though inclined, and the material passing through the bowl, after being freed from the precious metal sought to be recovered therefrom, will escape freely from the open end of the bowl, this material being dropped from the bowl and delivered to any suitable point.

By gradually increasing the mercury or amalgam retaining grooves from the closed end forwardly, assurance will be had that any particles or nuggets of precious metal escap in g one groove in its course through the bowl will encounter a somewhat larger bodyor bodies of mercury or amalgam and be finally trapped therein before reaching the basin 56, which is adapted to recover the liner or flour-like particles, which will either cling to the peripheral wall of the basin under centrifugal action, or be held in suspension within the'mercury or amalgam in said basin.

By providing the basin with a body of mercury or amalgam which is in constant circulation, or under movement back and forth in an endless course with a component movement circularly, assurance is had that the fine or flour-like precious particles of metal will be retained within the mercury or amalgam while the sand, earth, crushed or pulverized rock Aor other material from which precious metal is freed, will be assisted in its escape from the bowl, owing to that portion of the mercury or amalgam inside ofthe sepa-A rator ring moving in a forward direction.

Having thus described my invention," what I claim is l. 'An amalgamator, comprising an amalgamating bowl horizontally-disposed, means for pivotally mounting said bowl with its center of rotation passing transversely through sai-d bowl, and driving mechanism having its prime mover co-aXial with the pivotal mounting of said bowl. y

2. An amalganurtor, comprising an amalgamating receptacle closed at one end and open at the other and disposed at an angle to the vertical, a `shaft extending through said amalgam-ating receptacle and to which the latter' is secured, means for pivotally mounting said amalgamating receptacle, mechanism for rotating said shaft including an element having its axis coincident with the axis of the pivotal mounting of said rethe i ceptacle,.means for feeding material into said amalgamating receptacle to be discharged from the open end thereof when freed of precious substances, and an jamalgam catch surrounding said amalgamating receptacle and movable to receive the amalgam With its precious ycontents from said amalgamating vinto said amalgamating receptacle to be passed therethrough and escape from the same after being freed of precious substances, and anamalgam catch supported by' and mov- ,able'along saidl adjustable frame and normally surrounding said amalgamating recep- `tacle, said amalgam catch being adapted to be moved kto receive ythe amalgam with its precious contents after passing any kdesired c quantity of material through said amalgamating receptacle. n

4.',An amalgamator, comprising a supporting frame,alined pivot shafts at opposite sidesof said supporting frame, an adjustable framemounted for rotative adjustment by means of said pivot shafts,a longitudinallydisposed shaft on said Aadjustable frame, a

` V.pulley on one of said pivot shafts, a transverse shaft having a pulley alined with said first-mentioned pulley, a beltvpassing around saidpulleys, means` for rotating said lastmentioned pivot shaft, a bevel gear on said longitudinally-disposed. shaft, a bevel gear on saidv transverseshaft inmesh With the bevel gear'on said longitudinally-disposed shaft, an amalgamatin receptacle secured to said.longitudinally-disposed shaft, a feed v tube supported bysaid vvadjustable frame and extending into said amalgamatingreceptacle, andan amalgamcatch surrounding the discharge end of .said amalgainating receptacle and'fmovably supported byr said adjustable frame.

j 5. Aniamalgamator, `comprising a horizontally-disposed amalgamating receptacle mounted for sivingingadjustment on horizontal (centers, said amalgamating receptacle having an annular amalgam basin formed in the ivall thereof, means for rotating said amalgamating receptacle, and means Within said amalgam basin to retard the circular movei ment of the amalgam therein.

6. An amalganiator, comprising a horizontally-disposed, amalgamating receptacle having an annular amalgam basin formed in the Wall thereof near its outlet and means for rotating said anialgainating receptacle toeause the amalgam in said basin to clingr to thewall of said receptacle,1 and means to prevent the amalgam Within said basin moving circularly at the speed of said amalgamating receptacle.

7. An amalgainator, comprising a horizontally-disposed amalgainatin receptacle having an annular amalgam basin formed in the wall thereof near its outlet end, a ring Within said basin spaced from the peripheral wall thereof and somewhat narrower than said basin to provide tivo bodies of amalgam at opposite sides of said ring but en masse between the edges of said ring and the side walls of said basin, and means for rotating said ainalgainating receptacle.

8. An ainalgainator, comprising a horizontally-disposed ainalgainating receptacle having an annular amalgam basin formed in the Wall thereof near its outer end and havin r spaced internal ribs on the peripheral wall of said basin, a separator ring within said basin lying against said spaced internal ribs and having its edges spaced from the side walls of said basin, and means for rotating said anialgamating receptacle.

. 9. An amalgamator, comprising an amalgamating receptacle having an annular amalgam basin at its outlet end, means within said amalgam basin to cause the amalgam therein to travel in an endless manner within the basin with a component travel movement parallel with the axis of said amalgamating receptacle, and means for rotating said amalgamating receptacle.

l0. An ainalgamator, comprising an amalgainating receptacle having an annular amalgam basin at its outlet end, means within said basin to cause the amalgam therein to circulate Within the basin in a direction parallel with the axis of said amalgamating rece tacle with a component movement in a circu ar direction, and means for rotating said ama]- gamating recepticle.

l1. An amalgamator, comprising an amalgamating receptacle having an annular amalyam basin therein and having spaced obliquey-disposed ribs extending from its peripheral Wall and an annular ring bearing a Yainst said ribs and positioned centrally Witi reference to the depth of said basin, the ed es of said ring being spaced from the side wa s of said basin, and means for rotating said amalgamating rece tacle.

l2. An amalgamator, comprising a. su porting frame, an adjustable frame pivotal y mounted on said sup orting frame, a segment gearcarriedbysaida justable frame, a pinion in mesh with said gear segment, a shaft to whichsaidpinioiiissecured,means for rotating said shaft and pinion to cause said gear segment to move and swing said adj ustable frame on its pivots, means on said supporting frame to clamp said segment gear in an desired position, an amalgamating receptac e carried by said adjustable frame, and means for rotating said ainalgamating receptacle.

13. An amalgamator, comprising a supn I l l l n ior rotating said shai't and pinions, an ad-` justable ranie pivotaily mounted to the upper end of said standards7 senii-eireuiar inenibers at opposite sides of said adjustable frame and haring apposite ends thereof secured thereto, said sen'xi-eireu] ar members being' slotted through a portion of their length and lying against the outer sides of said standards, boits secured to said standards and extending through the slots of said se1nieirouiar ineinbers7 nuts threaded onto said bolts and adapt ed to be eiainped against said semi-Circular' members, said seini-eireu1ar members having gear teeth formed along a portion of their lengths adapted to inesh with said pinions and a receptacle carried by said adjust-able traine.

14. An ainalgainator, comprising a separating; receptacle open at one end and disposed at an angle to the Vertical, saidseparating receptacle being adjustable on a Center' disposed at a right angie to its axis and between the ends thereof, a catch basin surrounding said separating receptacle and being adj ustable with said separating receptacle on said Center and inovabie in the direction of the 4axis of said separating receptacle so as to DANIEL H. KLEINSCHMIDT. 

